<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
<!--

-->
<!-- 准备好一个容器-->
<div id="root">
    <!-- 遍历数组 -->
    <h2>人员列表（遍历数组） </h2>
    <input type="text" placeholder="请输入姓名" v-model="keyWord">
    <button @click="sortType = 2">年龄升序</button>
    <button @click="sortType = 1">年龄降序</button>
    <button @click="sortType = 0">原顺序</button>
    <ul>
        <li v-for="(p,index) of filterPersons" :key="p.id">
            {{p.name}}-{{p.age}}--{{p.sex}}
        </li>
    </ul>


</div>

<script type="text/javascript">
    Vue.config.productionTip = false

    new Vue({
        el:'#root',
        data: {
            keyWord: '',
            persons:[
                {id:'001',name:'马冬梅',age:33,sex:'女'},
                {id:'002',name:'周冬雨',age:19,sex:'女'},
                {id:'003',name:'周杰伦',age:21,sex:'男'},
                {id:'004',name:'温兆伦',age:55,sex:'男'}
            ],
            sortType: 0
        },

        computed: {
            filterPersons() {
                let arr = this.persons.filter(p => {
                    return p.name.indexOf(this.keyWord) !== -1
                })
                if(this.sortType) {
                    arr.sort((p1,p2)=>{
                        return this.sortType === 1 ? p2.age - p1.age : p1.age - p2.age
                    })
                }
                return arr
            }
        },
        methods: {

        }
    })
</script>
</body>
</html>